ANNOUNCE ex11 release two

[Vlad Dumitrescu]

From: "Joe Armstrong" <joe@REDACTED>
> On the contrary I think this is *exactly* how it should be done.

I can see your point, it's more flexible, even if it's more to write :-).

The possibility to (accidentaly) sending a callback that does a lot of
computations remains, and the widget (not the Ui, you're right) becomes
unresponsive then.

What about crashes in the callbacks? Is it enough to wrap them in a catch?

/Vlad